.banner {
  width: 100%;
  height: 700px;
  background: url("../img/banner.jpg") no-repeat center;
  background-size: cover;
}
/* 圆点 */
.banner .circle {
  position: absolute;
  bottom: 15px;
  left: 50%;
  margin: 0 auto;
  margin-left: -60px;
}
.circle .circle-item {
  width: 8px;
  height: 8px;
  margin: 0 5px;
  background-color: #fff;
  border-radius: 50%;
  border: 3px solid transparent;
  background-clip: content-box;
}
.circle .circle-item:hover {
  border: 3px solid #fff;
  background-color: #668aca;
}

/* 产品 */
.project {
  margin-top: 120px;
  width: 100%;
}

/* 产品导航 */
.project .nav {
  width: 370px;
  margin: 0 auto;
  overflow: hidden;
  margin-bottom: 55px;
}
.project .nav-item {
  overflow: hidden;
  font-size: 16px;
  line-height: 14px;
}
.project .nav a {
  float: left;
}
.project .nav .nav-item .line {
  display: block;
  width: 80%;
  height: 1px;
  margin: 0 auto;
  background-color: #668aca;
  margin-top: 6px;
  opacity: 0;
}
.project .nav .right-line {
  float: left;
  font-size: 8px;
  margin: 0 36px;
}
.project .nav-item:hover a {
  color: #668aca;
}
.project .nav-item:hover .line {
  opacity: 1;
}
.project .nav-item.active a {
  color: #668aca;
}
.project .nav-item.active .line {
  opacity: 1;
}

/* 项目展示 */
.project .show {
  overflow: hidden;
}
.show .show-item {
  position: relative;
  width: 360px;
  height: 270px;
  float: left;
}
.show .show-item.second {
  margin: 0 57px;
}
.show .show-item img {
  width: 360px;
  height: 180px;
}
.show .show-item .info {
  margin-top: 28px;
  position: relative;
}
.show .show-item h3 {
  font-size: 14px;
  line-height: 14px;
}
.show .show-item p {
  margin-top: 7px;
  font-size: 12px;
  line-height: 13px;
}
.show .show-item .icon {
  width: 30px;
  height: 30px;
  position: absolute;
  right: 0;
  bottom: 0;
  background: url("../img/tubiao1.png") no-repeat center;
}

/* 遮罩层 */
.show .mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 360px;
  height: 270px;
  background-color: #000000;
  border-radius: 8px;
  opacity: 0;
  color: #ffffff;
}
.mask .con {
  margin-top: 58px;
  margin-left: 50px;
}
.mask .con h3 {
  font-size: 14px;
  line-height: 15px;
}
.mask .con .desc {
  font-size: 14px;
  line-height: 12px;
  margin-top: 4px;
}
.mask .con .a {
  font-size: 12px;
  line-height: 17px;
  margin-top: 19px;
}
.mask .icon2 {
  position: absolute;
  bottom: 60px;
  right: 50px;
  width: 36px;
  height: 36px;
  background: url("../img/logo-2.png") no-repeat center;
}

/* 点击变换形式 */
.show-item:hover img {
  height: 100%;
}
.show-item:hover .mask {
  opacity: 0.5;
}
/* 当前选中显示效果
 .show-item.first img{
     height: 100%;
    }
.show-item.first .mask{
    opacity: 0.5;
} */

/* 产品 */
.product {
  overflow: hidden;
  height: 1283px;
}
/* 产品导航 */
.product .nav {
  width: 1136px;
  overflow: hidden;
  margin: 0 auto;
  margin-top: 54px;
  text-align: center;
}
.product .nav-item {
  position: relative;
  overflow: hidden;
  margin-right: 79px;
}
.product .nav-item.last {
  margin-right: 0;
}
.product .nav-item img {
  width: 124px;
  height: 66px;
  padding: 10px 20px;
}
.product .nav-item p {
  font-size: 14px;
  height: 28px;
  line-height: 28px;
  background-color: none;
}
.product .nav-item .line {
  display: block;
  width: 16px;
  height: 1px;
  margin: 0 auto;
  margin-top: -2px;
  background-color: #668aca;
  opacity: 0;
}

/* 鼠标点过的效果 */
/* 当前选中显示效果 */
.product .nav-item.first img {
  background-color: #668aca;
}
.product .nav-item.first p {
  font-size: 16px;
  color: #668aca;
}
.product .nav-item.first .line {
  opacity: 1;
}
.product .nav-item:hover img {
  background-color: #668aca;
}
.product .nav-item:hover p {
  font-size: 16px;
  color: #668aca;
}
.product .nav-item:hover .line {
  opacity: 1;
}

/* 产品列表 */
.product-list {
  overflow: hidden;
  margin-top: 110px;
  margin-bottom: 123px;
}
.product-list .list-item {
  overflow: hidden;
  height: 360px;
}
.product-list .list-item.second {
  margin: 0 60px;
}
.product-list .list-item img {
  width: 304px;
  height: 304px;
  display: block;
  border-radius: 8px;
  padding: 8px 28px;
}
.product-list .list-item .info {
  height: 40px;
  padding-left: 93px;
  margin: 0 auto;
}
.product-list .list-item .info h3 {
  font-size: 16px;
  height: 16px;
  list-style: 16px;
}
.product-list .list-item .info p {
  font-size: 14px;
  height: 14px;
  padding-top: 8px;
  line-height: 14px;
}
/* 蒙版 */
.product-list .list-item .mask {
  position: absolute;
  left: 0;
  top: 0;
  color: #fff;
  width: 360px;
  height: 320px;
  background-color: #000000;
  border-radius: 8px;
  opacity: 0;
}
.product-list .list-item .line {
  float: left;
  position: absolute;
  top: 154px;
  width: 80px;
  height: 1px;
  background-color: #ffffff;
}
.product-list .list-item .num {
  margin-top: 131px;
  margin-left: 84px;
  font-size: 30px;
  line-height: 25px;
}
.product-list .list-item .in {
  margin-top: 16px;
  margin-left: 69px;
}
.product-list .list-item .in h3 {
  font-size: 16px;
  height: 16px;
  list-style: 16px;
}
.product-list.product-list .list-item .in p {
  font-size: 14px;
  height: 14px;
  padding-top: 10px;
  line-height: 14px;
}
/* 点击效果 */
.product-list .list-item:hover img {
  width: 360px;
  height: 320px;
  padding: 0;
}
.product-list .list-item:hover .info {
  opacity: 0;
}
.product-list .list-item:hover .mask {
  opacity: 0.5;
}
/* 当前选中效果 */
/* .product-list .list-item.first .mask{
    opacity: 0.5;
}
.product-list .list-item.first .info{
    opacity: 0;
}
.product-list .list-item.first .img{
    width: 360px;
    height: 320px;
    padding: 0;
} */

.services {
  overflow: hidden;
  height: 700px;
  background: url("../img/service.jpg") no-repeat;
  background-size: cover;
  color: #fff;
}
.services-title {
  font-size: 30px;
  line-height: 23px;
  margin-top: 150px;
}
.services-desc {
  font-size: 14px;
  height: 22px;
  line-height: 22px;
  margin-top: 38px;
}
.services .box {
  width: 1004px;
  height: 150px;
  margin: 0 auto;
  text-align: center;
}
.services .box-item {
  overflow: hidden;
  width: 250px;
  height: 150px;
  margin-top: 146px;
  box-sizing: border-box;
  border: solid 1px #525058;
}
.services .box-item h3 {
  margin-top: 51px;
  font-size: 16px;
  line-height: 16px;
}
.services .box-item .line {
  width: 30px;
  height: 1px;
  margin: 13px auto;
  background-color: #fff;
}
.services .box-item .box-desc {
  font-size: 14px;
  line-height: 14px;
}
/* 点击隐藏效果 */
.services .box-item:hover {
  border: #668aca;
  background-color: #668aca;
}
.services .box-item.active {
  border: #668aca;
  background-color: #668aca;
}

/* 新闻 */
.news {
  width: 100%;
  overflow: hidden;
}
.news .pic-box {
  float: left;
  font-size: 0;
}
.news .pic .pic1 {
  position: relative;
  width: 570px;
  height: 270px;
  margin-bottom: 30px;
  background: url("../img/news1.jpg") no-repeat center;
}
/* 遮罩层 */
.news .mask {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 90px;
  color: #ffff;
  background-color: rgba(0, 0, 0, 0.5);
}
.news .mask h3 {
  margin-left: 50px;
  margin-top: 11px;
  font-size: 16px;
  line-height: 17px;
}
.news .mask p {
  margin-left: 50px;
  margin-top: 11px;
  font-size: 12px;
  line-height: 22px;
}
.news .mask .icon {
  position: absolute;
  right: 50px;
  bottom: 12px;
  width: 36px;
  height: 36px;
  background: url("../img/logo-2.png") no-repeat center;
}
.news .pic2 {
  width: 270px;
  height: 270px;
  margin-right: 30px;
}
.news .pic3 {
  width: 270px;
  height: 270px;
}
.news .pic4 {
  float: right;
  width: 570px;
  height: 570px;
  background: url("../img/news4.jpg") no-repeat center;
}

/* 关于我们 */
.about {
  overflow: hidden;
  margin-bottom: 120px;
}
.about-con {
  height: 386px;
}
.about-con img {
  float: left;
  width: 500px;
  height: 300px;
}
.about-con .first {
  padding-top: 10px;
}
.about-con p {
  float: right;
  width: 674px;
  font-size: 14px;
  line-height: 25px;
  margin: 12px 0;
}
